Rotary engine



(No Model.) 2 Sheets-Sheet 1. J. M. FARMER. ROTARY ENGINE.

No. 412,079. Patented Oct. 1, 1889 favezafior. 65.01..

m f 1 w M I J by c M V E xwfilh L (No Mqdel.) 2 Sheets-Sheet 2.

J. M. FARMER.

ROTARY ENGINE.

N0. 412,079. Patented Oct. 1, 1889 774237663365.- 7 JOUMK N. PEIERS. Phblol lhugnphon Wahmglcn. D, c.

UNITED STATES PATENT OFFICE.

JULIUS M. FARMER, OF CHEBOYGAN, MICHIGAN.

ROTARY ENGINE.

SPECIFICATION formingpart of Letters Patent No. 412,079, dated October 1, 1889. Application filed July 25, 1887- Serial No. 245,286. (No model.)

To all whom it 12mg concern/.-

Be it known that I, JULIUS M. FABMER, of Oheboygan, in the county of Gheboygan and State of Michigan, have invented a new and Improved Rotary Engine, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.

My invention relates to an improvement in rotary engines; and it consists in the arrangement and combination of parts, which will be more fully described hereinafter, whereby a rotary engine is produced.

The object of my invention is to produce a rotary engine in which the cylinders are secured to a revolving disk, and in which the end of the revolving steam-pipe is attached directly to the disk and surrounded by a jacket into which the exhaust-steam is discharged.

Figure 1 is a vertical section of an engine which embodies my invention. Fig. 2 is an end view, partly in section. Fig. 3 is an end view taken from the opposite side of the disk from Fig. 2. Fig. 4 is a detail view showing the relative positions of the pistonrods.

A represents the bed-plate, from which rise the two standards B, upon the upper ends of which the hollow shaft 0, provided with the driving-pulley X, is journaled. This shaft 0 conducts the steam to the engine, and has the steam-pipe-N connected to one end by means of the stufling box O, and has the disk D rigidly secured to its other closed end, so that when the disk is made to revolve it will transmit its motion to the shaft.

Secured to the disk are the two cylinders E, which are placed at right angles to each other, and in which the pistons F work. These pistons have the rods G secured to them, and to the outer ends of the rods are secured the heads H, which move back and forth upon the guides i, secured to the disk and placed just opposite the cylinders. To each head is fastened a connecting-rod K, which has its other end fastened to a pin L, which projects from the inner side of the standard M, which is bolted to the bed plate. The pin L is located to one side of the center, and serves as a point of resistance against the movement of the pistons and piston-rods, and thus the disk is compelled to revolve when the steam is turned onto the cylinders.

The steam-chests R project through openings in the disk, and the slide-valves T are operated by the rods S and eccentric straprods (1, which are connected to the straps m it, placed upon the stationary eccentric a, secured to the upright B. As the disk and cylinders revolve, the eccentric m n operates the valves T in the usual manner, so as to control the admission to and escape of the steam from the cylinders.

That end of the pipe C next to the disk is surrounded by the jacket h, which has one end closed by the upright B, and which revolves with the disk and pipe 0. Extending from the pipe 0 through the jacket h is the live-steam pipe I), and extending from the exhaust is the pipe The exhaust-steam is discharged into the hollow space f between the jacket and the pipe 0, and escapes through the opening g in the standard B.

The hollow shaft 0 and the shell H revolve with the disk 1), while the eccentric uis held stationary by the operating-lever I, which is secured to it. By turning the operating-lever I half-way around, the eccentric u is revolved with it, and by this half-revolution reverses the position of the cut-offs T, thus reversing the motion of the engine. This lever is held in its adjusted position by means of the spring crank-pin N, which catches between suitable projections T, Fig. 3,upon the standard B.

Having thus described my invention, I claim- 1. The combination of the revolving steampipe, the disk secured to its end and revolving therewith, the steam-cylinders secured to the disk, the heads, piston-rods connected thereto, the rod K, and the point of resistance L, to which one end. of the rod K is attached at one end with the jacket which surrounds the end of the steam-pipe, the live and exhaust steanvpipes, the straps m it, placed upon the disk at, and the valves and valve-rods, substantially as shown.

, 2. In a rotary engine, the combination of the revolving steampipe and the disk and its attachl'nent secured thereto, with the revolvhand and affixed my seal this 12th day of ing jacket h, secured to the disk at one end, July, A. D. 1887.

the steam-pipesbv the eccentric disku placed a upon the jacket, the straps m n, the valve- JULIUb FARMER' 5 rods and the standard B, having the passage Witnesses:

9 through it, substantially as described. JAMES A. MOMILLAN, In Witness whereof I have hereunto set my FRANK SHEPHERD. 

